(I've moved the posts from the previous topic over to this one since it is about specific help)
It looks like the problem is that you use a Unique Element ID on the Hype element (dato1 and dato2), and also reuse them in the Inner HTML for the <input> fields. Therefore it is reading the .val() from the Hype element, which is blank. You should only have one unique element ID, so if you just remove them on the Hype element, and leave them on the inner HTML <input>, then it will work.